Oh ya!

Tricky Install-Easy Use

I bought these back in November of 2017. I ride a KLR 650 and have been riding quite frequently to work. I ride down into the teens with these grips and while possible at those temperatures, riding with the grips did start to get uncomfortably cold again. The back of my hands would get cold while the front would be piping hot. Not really the grips fault, because my gloves are just too thin, but worth keeping in mind. That said, these grips have been perfectly capable of generating enough heat in slightly more reasonable conditions, like around 30 degrees outside is perfectly comfortable at 70mph as long as I have these grips cranked up to the max.
They were a bit difficult to install, as my left side was so tight I had to smack it with a rubber mallet to get it to slide on, and then the right side was so loose I needed to use quite a bit of the included super glue. Once they were on, however, it's been a breeze.

Needed for KTM piston job

Okay As A Temporary Spare ONLY

I got a pair of these to temporarily replace broken turn signal lights. The bulb is an odd size and it burned out the first ride I used it on. It was difficult and expensive finding a replacement bulb. The metal threaded mounting tube was pulled out of the plastic extension post after minimal use. This light might be okay to carry as a cheap spare but it is unlikely to serve as a permanent replacement.